FR2248181A1 - Automobile braking system - double circuit front circuit failure results in automatic maximum pressure in rear circuit - Google Patents

Automobile braking system - double circuit front circuit failure results in automatic maximum pressure in rear circuit

Info

Publication number
FR2248181A1
FR2248181A1 FR7337744A FR7337744A FR2248181A1 FR 2248181 A1 FR2248181 A1 FR 2248181A1 FR 7337744 A FR7337744 A FR 7337744A FR 7337744 A FR7337744 A FR 7337744A FR 2248181 A1 FR2248181 A1 FR 2248181A1
Authority
FR
France
Prior art keywords
circuit
braking system
maximum pressure
brake
automobile braking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7337744A
Other languages
French (fr)
Other versions
FR2248181B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DBA SA
Original Assignee
DBA SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DBA SA filed Critical DBA SA
Priority to FR7337744A priority Critical patent/FR2248181A1/en
Priority to AR25618774A priority patent/AR202587A1/en
Priority to JP12153274A priority patent/JPS577943B2/ja
Publication of FR2248181A1 publication Critical patent/FR2248181A1/en
Application granted granted Critical
Publication of FR2248181B1 publication Critical patent/FR2248181B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/28—Valves specially adapted therefor
    • B60T11/34—Pressure reducing or limiting valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/025—Electrically controlled valves
    • B60T15/028—Electrically controlled valves in hydraulic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1837—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the load-detecting arrangements
    • B60T8/185—Arrangements for detecting vehicle level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels

Abstract

The pressure source is a tandem master cylinder (10). One brake circuit (14) connects the first chamber to a set of brake cylinders (16) on the front wheels (18). The second circuit (20) joins the second chamber to the cylinders (22) of the rear wheels (24). A pressure regulator (26) is in the second circuit and is proportional to vehicle load. An electrically operated valve (28) in the second circuit is in parallel with the regulating valve and is operated by the brake light switch. Front brake circuit failure automatically gives full pressure application to the rear brakes.
FR7337744A 1973-10-23 1973-10-23 Automobile braking system - double circuit front circuit failure results in automatic maximum pressure in rear circuit Granted FR2248181A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7337744A FR2248181A1 (en) 1973-10-23 1973-10-23 Automobile braking system - double circuit front circuit failure results in automatic maximum pressure in rear circuit
AR25618774A AR202587A1 (en) 1973-10-23 1974-10-22 AUTOMOTIVE VEHICLE BRAKE ARRANGEMENT
JP12153274A JPS577943B2 (en) 1973-10-23 1974-10-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7337744A FR2248181A1 (en) 1973-10-23 1973-10-23 Automobile braking system - double circuit front circuit failure results in automatic maximum pressure in rear circuit

Publications (2)

Publication Number Publication Date
FR2248181A1 true FR2248181A1 (en) 1975-05-16
FR2248181B1 FR2248181B1 (en) 1976-06-18

Family

ID=9126804

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7337744A Granted FR2248181A1 (en) 1973-10-23 1973-10-23 Automobile braking system - double circuit front circuit failure results in automatic maximum pressure in rear circuit

Country Status (3)

Country Link
JP (1) JPS577943B2 (en)
AR (1) AR202587A1 (en)
FR (1) FR2248181A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175837A2 (en) * 1984-06-04 1986-04-02 Allied Corporation Load-dependent proportioning valve
US4740039A (en) * 1984-04-17 1988-04-26 Volkswagenwerk Aktiengesellschaft Hydraulic dual-circuit brake system for automobiles
US5167441A (en) * 1989-11-15 1992-12-01 Alfred Teves Gmbh Anti-lock brake system for automotive vehicles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075068B2 (en) * 1987-07-24 1995-01-25 株式会社ナブコ Break pressure control device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556607A (en) * 1969-06-11 1971-01-19 Bendix Corp Combination proportioning and bypass valve
US3661426A (en) * 1970-06-01 1972-05-09 Bendix Corp Combination warning switch and proportioning valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740039A (en) * 1984-04-17 1988-04-26 Volkswagenwerk Aktiengesellschaft Hydraulic dual-circuit brake system for automobiles
EP0175837A2 (en) * 1984-06-04 1986-04-02 Allied Corporation Load-dependent proportioning valve
EP0175837A3 (en) * 1984-06-04 1986-12-10 Allied Corporation Load-dependent proportioning valve
US5167441A (en) * 1989-11-15 1992-12-01 Alfred Teves Gmbh Anti-lock brake system for automotive vehicles

Also Published As

Publication number Publication date
JPS5077772A (en) 1975-06-25
JPS577943B2 (en) 1982-02-13
FR2248181B1 (en) 1976-06-18
AR202587A1 (en) 1975-06-24

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